/* ===== 기본 설정 ===== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

/* ===== 페이지 전환 애니메이션 ===== */
.page-transition {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s ease-in-out, transform 0.5s ease-in-out;
}

.page-transition.loaded {
  opacity: 1;
  transform: translateY(0);
}

.page-fade-out {
  opacity: 0;
  transform: translateY(-20px);
  transition: opacity 0.3s ease-in-out, transform 0.3s ease-in-out;
}

:root {
  --primary-color: #2563eb;
  --primary-dark: #1d4ed8;
  --secondary-color: #64748b;
  --accent-color: #f59e0b;
  --success-color: #10b981;
  --warning-color: #f59e0b;
  --error-color: #ef4444;
  --background-color: #f8fafc;
  --surface-color: #ffffff;
  --text-primary: #1e293b;
  --text-secondary: #64748b;
  --text-muted: #94a3b8;
  --border-color: #e2e8f0;
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1);
  --border-radius: 8px;
  --border-radius-lg: 12px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

body {
  font-family: "Noto Sans KR", -apple-system, BlinkMacSystemFont, "Segoe UI",
    Roboto, sans-serif;
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--background-color);
  overflow-x: hidden;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1rem;
}

/* ===== 헤더 & 네비게이션 ===== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-color);
  z-index: 9999;
  transition: var(--transition);
}

.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 2rem;
  max-width: 1200px;
  margin: 0 auto;
}

.nav-brand h1 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary-color);
  margin-bottom: 0.25rem;
}

.nav-brand span {
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: 2rem;
  align-items: center;
}

.nav-link {
  text-decoration: none;
  color: var(--text-primary);
  font-weight: 500;
  padding: 0.5rem 1rem;
  border-radius: var(--border-radius);
  transition: var(--transition);
  position: relative;
}

.nav-link:hover,
.nav-link.active {
  color: var(--primary-color);
  background-color: rgba(37, 99, 235, 0.1);
}

.admin-link {
  background: linear-gradient(
    135deg,
    var(--primary-color),
    var(--primary-dark)
  );
  color: white !important;
  padding: 0.5rem 1rem;
  border-radius: var(--border-radius);
}

.admin-link:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.hamburger {
  display: none;
  flex-direction: column;
  cursor: pointer;
  gap: 4px;
}

.hamburger span {
  width: 25px;
  height: 3px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: var(--transition);
}

/* ===== 히어로 섹션 ===== */
.hero {
  min-height: 90vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="50" cy="50" r="1" fill="white" opacity="0.1"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
  opacity: 0.3;
}

.hero-content {
  max-width: 800px;
  padding: 2rem;
  position: relative;
  z-index: 2;
  text-align: center;
}

.hero-centered {
  max-width: 1000px;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
}

.hero-title {
  font-size: 3.5rem;
  font-weight: 700;
  line-height: 1.2;
  margin-top: 7rem;
  margin-bottom: 7rem;
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.highlight {
  background: linear-gradient(45deg, #fbbf24, #f59e0b);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-description {
  font-size: 1.25rem;
  margin-bottom: 3rem;
  opacity: 0.9;
  line-height: 1.6;
}

.hero-buttons {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  margin-top: 7rem;
}

/* ===== 버튼 스타일 ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 1rem 2rem;
  border: none;
  border-radius: var(--border-radius);
  font-size: 1.125rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  min-width: 200px;
  min-height: 60px;
}

.btn::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.2),
    transparent
  );
  transition: left 0.5s;
}

.btn:hover::before {
  left: 100%;
}

.btn-primary {
  background: linear-gradient(
    135deg,
    var(--primary-color),
    var(--primary-dark)
  );
  color: white;
  box-shadow: var(--shadow-md);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.2);
  color: white;
  border: 2px solid rgba(255, 255, 255, 0.3);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.3);
  transform: translateY(-2px);
}

/* ===== 섹션 공통 스타일 ===== */
.section-title {
  font-size: 2.5rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.section-description {
  text-align: center;
  font-size: 1.125rem;
  color: var(--text-secondary);
  margin-bottom: 3rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

/* ===== 챕터 섹션 ===== */
.chapters-section {
  padding: 6rem 0;
  background: var(--surface-color);
}

.chapters-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.chapter-card {
  background: var(--surface-color);
  border-radius: var(--border-radius-lg);
  padding: 2rem;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border-color);
  transition: var(--transition);
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

.chapter-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
}

.chapter-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-xl);
}

.chapter-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1rem;
}

.chapter-icon {
  font-size: 2rem;
  width: 60px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(
    135deg,
    var(--primary-color),
    var(--primary-dark)
  );
  color: white;
  border-radius: 50%;
}

.chapter-title {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.25rem;
}

.chapter-description {
  color: var(--text-secondary);
  font-size: 0.875rem;
}

.chapter-stats {
  display: flex;
  gap: 1rem;
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border-color);
}

.stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  flex: 1;
}

.stat-number {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--primary-color);
}

.stat-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-align: center;
}

/* ===== 검색 섹션 ===== */
.search-section {
  padding: 6rem 0;
  background: var(--background-color);
}

.search-container {
  max-width: 800px;
  margin: 0 auto 3rem;
}

.search-box {
  position: relative;
  margin-bottom: 2rem;
}

.search-box input {
  width: 100%;
  padding: 1rem 3rem 1rem 1rem;
  border: 2px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  font-size: 1rem;
  transition: var(--transition);
  background: var(--surface-color);
}

.search-box input:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.search-btn {
  position: absolute;
  right: 0.5rem;
  top: 50%;
  transform: translateY(-50%);
  background: var(--primary-color);
  color: white;
  border: none;
  border-radius: var(--border-radius);
  padding: 0.75rem;
  cursor: pointer;
  transition: var(--transition);
}

.search-btn:hover {
  background: var(--primary-dark);
  transform: translateY(-50%) scale(1.05);
}

.search-filters {
  display: flex;
  gap: 0.5rem;
  justify-content: center;
  flex-wrap: wrap;
}

.filter-btn {
  padding: 0.5rem 1rem;
  border: 2px solid var(--border-color);
  background: var(--surface-color);
  color: var(--text-secondary);
  border-radius: var(--border-radius);
  cursor: pointer;
  transition: var(--transition);
  font-size: 0.875rem;
}

.filter-btn:hover,
.filter-btn.active {
  border-color: var(--primary-color);
  background: var(--primary-color);
  color: white;
}

.search-results {
  margin-top: 2rem;
}

.no-search {
  text-align: center;
  padding: 3rem;
  color: var(--text-muted);
}

.no-search-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
}

.result-item {
  background: var(--surface-color);
  border-radius: var(--border-radius-lg);
  padding: 1.5rem;
  margin-bottom: 1rem;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
  transition: var(--transition);
}

.result-item:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.result-title {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.result-description {
  color: var(--text-secondary);
  font-size: 0.875rem;
  margin-bottom: 0.5rem;
}

.result-meta {
  display: flex;
  gap: 1rem;
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* ===== 통계 섹션 ===== */
.stats-section {
  padding: 4rem 0;
  background: linear-gradient(
    135deg,
    var(--primary-color),
    var(--primary-dark)
  );
  color: white;
}

.stats-section .section-title {
  color: white;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
  margin-top: 2rem;
}

.stat-card {
  text-align: center;
  padding: 2rem;
  background: rgba(255, 255, 255, 0.1);
  border-radius: var(--border-radius-lg);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  transition: var(--transition);
}

.stat-card:hover {
  transform: translateY(-5px);
  background: rgba(255, 255, 255, 0.2);
}

.stat-icon {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

.stat-number {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  color: #fbbf24;
}

.stat-label {
  font-size: 1rem;
  opacity: 0.9;
}

/* ===== 소개 섹션 ===== */
.about-section {
  padding: 6rem 0;
  background: var(--surface-color);
}

.about-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.about-text h3 {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 1rem;
}

.about-text p {
  color: var(--text-secondary);
  margin-bottom: 2rem;
  line-height: 1.6;
}

.about-text ul {
  list-style: none;
  padding: 0;
}

.about-text li {
  padding: 0.5rem 0;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.feature-showcase {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.feature-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1.5rem;
  background: var(--background-color);
  border-radius: var(--border-radius-lg);
  border: 1px solid var(--border-color);
  transition: var(--transition);
}

.feature-item:hover {
  transform: translateX(10px);
  box-shadow: var(--shadow-md);
}

.feature-icon {
  font-size: 2rem;
  width: 60px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(
    135deg,
    var(--primary-color),
    var(--primary-dark)
  );
  color: white;
  border-radius: 50%;
  flex-shrink: 0;
}

.feature-item h4 {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.25rem;
}

.feature-item p {
  color: var(--text-secondary);
  font-size: 0.875rem;
  margin: 0;
}

/* ===== 푸터 ===== */
.footer {
  background: var(--text-primary);
  color: white;
  padding: 3rem 0 1rem;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin-bottom: 2rem;
}

.footer-section h3,
.footer-section h4 {
  margin-bottom: 1rem;
  color: white;
}

.footer-section p {
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: 1rem;
}

.footer-section ul {
  list-style: none;
  padding: 0;
}

.footer-section li {
  margin-bottom: 0.5rem;
}

.footer-section a {
  color: rgba(255, 255, 255, 0.8);
  text-decoration: none;
  transition: var(--transition);
}

.footer-section a:hover {
  color: white;
}

.footer-bottom {
  text-align: center;
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.2);
  color: rgba(255, 255, 255, 0.8);
}

/* ===== 스크롤 투 탑 ===== */
.scroll-to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 50px;
  height: 50px;
  background: var(--primary-color);
  color: white;
  border: none;
  border-radius: 50%;
  cursor: pointer;
  transition: var(--transition);
  opacity: 0;
  visibility: hidden;
  z-index: 1000;
}

.scroll-to-top.visible {
  opacity: 1;
  visibility: visible;
}

.scroll-to-top:hover {
  background: var(--primary-dark);
  transform: translateY(-3px);
}

/* ===== 로딩 스피너 ===== */
.loading-spinner {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 3rem;
  color: var(--text-muted);
}

.spinner {
  width: 40px;
  height: 40px;
  border: 4px solid var(--border-color);
  border-top: 4px solid var(--primary-color);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin-bottom: 1rem;
}

@keyframes spin {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}

/* ===== 반응형 디자인 ===== */
@media (max-width: 768px) {
  .hamburger {
    display: flex;
  }

  .nav-menu {
    display: none;
  }

  .hero {
    flex-direction: column;
    text-align: center;
  }

  .hero-title {
    font-size: 2.5rem;
  }

  .hero-buttons {
    justify-content: center;
    align-items: center;
    flex-direction: column;
    gap: 1rem;
  }

  .btn {
    min-width: 250px;
    width: 100%;
    max-width: 300px;
  }

  .about-content {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .feature-item {
    flex-direction: column;
    text-align: center;
  }

  .footer-content {
    grid-template-columns: 1fr;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 0.5rem;
  }

  .navbar {
    padding: 1rem;
  }

  .hero-title {
    font-size: 2rem;
  }

  .section-title {
    font-size: 2rem;
  }

  .chapters-grid {
    grid-template-columns: 1fr;
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* ===== 검색 결과 스타일 ===== */
.result-item {
  background: var(--surface-color);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  padding: 1.5rem;
  margin-bottom: 1rem;
  transition: var(--transition);
  cursor: pointer;
  box-shadow: var(--shadow-sm);
}

.result-item:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: var(--primary-color);
}

.result-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
}

.result-icon {
  font-size: 1.5rem;
  flex-shrink: 0;
}

.result-title {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text-primary);
  margin: 0;
  flex: 1;
}

.result-type {
  background: var(--primary-color);
  color: white;
  padding: 0.25rem 0.75rem;
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.result-description {
  color: var(--text-secondary);
  font-size: 0.875rem;
  line-height: 1.5;
  margin: 0;
}

.result-chapter {
  border-left: 4px solid var(--primary-color);
}

.result-lesson {
  border-left: 4px solid var(--secondary-color);
}

.result-lesson .result-type {
  background: var(--secondary-color);
}

.result-section {
  border-left: 4px solid var(--warning-color);
}

.result-section .result-type {
  background: var(--warning-color);
}

.result-subsection {
  border-left: 4px solid var(--error-color);
}

.result-subsection .result-type {
  background: var(--error-color);
}

.result-topic {
  border-left: 4px solid var(--warning-color);
}

.result-topic .result-type {
  background: var(--warning-color);
}

.result-keyword {
  border-left: 4px solid var(--accent-color);
}

.result-keyword .result-type {
  background: var(--accent-color);
}

.result-content {
  border-left: 4px solid var(--success-color);
}

.result-content .result-type {
  background: var(--success-color);
}

/* 검색 결과 애니메이션 */
.result-item {
  opacity: 0;
  transform: translateY(20px);
  animation: slideInUp 0.3s ease-out forwards;
}

@keyframes slideInUp {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* 로딩 스피너 */
.loading-spinner {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 3rem;
  color: var(--text-secondary);
}

.spinner {
  width: 2rem;
  height: 2rem;
  border: 3px solid var(--border-color);
  border-top: 3px solid var(--primary-color);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin-bottom: 1rem;
}

/* ===== Result 페이지 스타일 ===== */
.result-main-content {
  min-height: calc(100vh - 80px);
  padding: 4rem 0;
  background: var(--bg-primary);
}

.result-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* Result 헤더 */
.result-header {
  margin-bottom: 4rem;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 2rem;
}

.result-title-section {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.result-category {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-secondary);
}

.result-main-title {
  font-size: 3rem;
  font-weight: 700;
  line-height: 1.2;
  color: var(--text-primary);
  margin: 0;
}

/* Result 콘텐츠 그리드 */
.result-content-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 2rem;
  margin-bottom: 4rem;
}

.result-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  padding: 2rem;
  transition: all 0.3s ease;
  cursor: pointer;
}

.result-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
  border-color: var(--primary-color);
}

.result-card-title {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
  color: var(--text-primary);
}

.result-card-description {
  font-size: 0.9rem;
  line-height: 1.6;
  color: var(--text-secondary);
  margin-bottom: 1rem;
}

.result-card-meta {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-top: 1rem;
}

.result-card-date {
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.result-card-tags {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.result-tag {
  background: rgba(0, 0, 0, 0.05);
  padding: 0.25rem 0.75rem;
  border-radius: 4px;
  font-size: 0.75rem;
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
}

/* Result 리스트 스타일 */
.result-subsection {
  margin-top: 4rem;
}

.subsection-header {
  margin-bottom: 2rem;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 1rem;
}

.subsection-title {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--text-primary);
  margin: 0;
}

.result-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.result-list-item {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 2rem;
  padding: 1.5rem 0;
  border-bottom: 1px solid var(--border-color);
  transition: all 0.2s ease;
  cursor: pointer;
}

.result-list-item:hover {
  background: rgba(0, 0, 0, 0.02);
  padding-left: 1rem;
  padding-right: 1rem;
}

.result-list-item:last-child {
  border-bottom: none;
}

.result-list-date {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  min-width: 80px;
}

.result-list-content {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.result-list-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
}

.result-list-description {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.result-list-meta {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  align-items: flex-end;
  min-width: 120px;
}

.result-list-tags {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.result-list-tag {
  background: rgba(0, 0, 0, 0.05);
  padding: 0.2rem 0.6rem;
  border-radius: 4px;
  font-size: 0.7rem;
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
}

.result-list-location {
  font-size: 0.8rem;
  color: var(--text-secondary);
  text-align: right;
}

/* 빈 상태 */
.result-empty-state {
  grid-column: 1 / -1;
  text-align: center;
  padding: 4rem 2rem;
  color: var(--text-secondary);
}

/* 반응형 디자인 */
@media (max-width: 768px) {
  .result-container {
    padding: 0 1rem;
  }

  .result-main-title {
    font-size: 2rem;
  }

  .result-content-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .result-list-item {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .result-list-date {
    min-width: auto;
  }

  .result-list-meta {
    align-items: flex-start;
    min-width: auto;
  }

  .result-list-tags {
    justify-content: flex-start;
  }

  .result-list-location {
    text-align: left;
  }
}

/* ===== 소개 페이지 스타일 ===== */
.main-content {
  min-height: calc(100vh - 80px);
  padding-top: 80px;
}

/* 히어로 섹션 */
.about-hero {
  padding: 6rem 0;
  background: linear-gradient(135deg, #ff4444 0%, #4444ff 100%);
  color: white;
  overflow: hidden;
  position: relative;
}

.about-hero::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="50" cy="50" r="1" fill="white" opacity="0.1"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
  opacity: 0.3;
}

.about-hero .hero-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero-text {
  max-width: 600px;
}

.about-hero .hero-title {
  font-size: 3.5rem;
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 1.5rem;
}

.about-hero .hero-description {
  font-size: 1.2rem;
  line-height: 1.6;
  margin-bottom: 2.5rem;
  opacity: 0.9;
}

.hero-buttons {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.hero-visual {
  position: relative;
  height: 400px;
}

.hero-image {
  position: relative;
  width: 100%;
  height: 100%;
}

.floating-card {
  position: absolute;
  background: rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(10px);
  border-radius: 16px;
  padding: 1.5rem;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
  display: flex;
  align-items: center;
  gap: 1rem;
  animation: float 6s ease-in-out infinite;
  color: white;
  border: 2px solid rgba(255, 255, 255, 0.3);
  transition: all 0.3s ease;
}

.floating-card:hover {
  background: rgba(255, 255, 255, 0.3);
  transform: translateY(-2px);
}

.floating-card .card-icon {
  font-size: 2rem;
}

.floating-card span {
  font-weight: 600;
  font-size: 0.9rem;
}

.card-1 {
  top: 5%;
  left: 5%;
  animation-delay: 0s;
}

.card-2 {
  top: 21%;
  right: 23%;
  animation-delay: 1.5s;
}

.card-3 {
  bottom: 25%;
  left: 15%;
  animation-delay: 3s;
}

.card-4 {
  bottom: 5%;
  right: 15%;
  animation-delay: 4.5s;
}

@keyframes float {
  0%,
  100% {
    transform: translateY(0px);
  }
  50% {
    transform: translateY(-20px);
  }
}

/* 특징 섹션 */
.features-section {
  padding: 6rem 0;
  background: var(--bg-primary);
}

.section-header {
  text-align: center;
  margin-bottom: 4rem;
}

.section-title {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.section-description {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 2rem;
}

.feature-card {
  background: var(--bg-secondary);
  border-radius: 20px;
  padding: 2.5rem;
  text-align: center;
  transition: all 0.3s ease;
  border: 2px solid transparent;
  position: relative;
  overflow: hidden;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
}

.feature-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, #ff4444, #4444ff);
  transform: scaleX(0);
  transition: transform 0.3s ease;
}

.feature-card:hover::before {
  transform: scaleX(1);
}

.feature-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.15);
  border-color: var(--primary-color);
}

.feature-icon {
  margin-bottom: 1.5rem;
}

.icon-bg {
  width: 80px;
  height: 80px;
  background: transparent;
  border-radius: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  margin: 0 auto;
  color: var(--primary-color);
}

.feature-card h3 {
  font-size: 1.3rem;
  font-weight: 600;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.feature-card p {
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 1.5rem;
}

.feature-tags {
  display: flex;
  gap: 0.5rem;
  justify-content: center;
  flex-wrap: wrap;
}

.tag {
  background: var(--primary-color);
  color: white;
  padding: 0.3rem 0.8rem;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 500;
}

/* 학습 구조 섹션 */
.structure-section {
  padding: 6rem 0;
  background: var(--bg-secondary);
}

.structure-container {
  max-width: 800px;
  margin: 0 auto;
}

.structure-flow {
  display: flex;
  flex-direction: row;
  gap: 1rem;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  overflow-x: auto;
  padding: 1rem 0;
}

.structure-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.8rem;
  background: var(--bg-primary);
  border-radius: 16px;
  padding: 1.5rem;
  min-width: 140px;
  max-width: 160px;
  transition: all 0.3s ease;
  border: 2px solid transparent;
  text-align: center;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
  position: relative;
  overflow: hidden;
}

.structure-item::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, #ff4444, #4444ff);
  transform: scaleX(0);
  transition: transform 0.3s ease;
}

.structure-item:hover {
  transform: translateY(-5px);
  border-color: var(--primary-color);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.15);
}

.structure-item:hover::before {
  transform: scaleX(1);
}

.structure-icon {
  font-size: 2.5rem;
  margin-bottom: 0.5rem;
}

.structure-content {
  width: 100%;
}

.structure-content h4 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 0.3rem;
  color: var(--text-primary);
}

.structure-content p {
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-bottom: 0.3rem;
}

.structure-desc {
  font-size: 0.7rem;
  color: var(--primary-color);
  font-weight: 500;
}

.flow-arrow {
  font-size: 1.5rem;
  color: var(--primary-color);
  font-weight: bold;
  margin: 0 0.5rem;
  flex-shrink: 0;
}

/* 기술 스택 섹션 */
.tech-section {
  padding: 6rem 0;
  background: var(--bg-primary);
}

.tech-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  max-width: 1000px;
  margin: 0 auto;
}

.tech-category h3 {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 2rem;
  color: var(--text-primary);
  text-align: center;
}

.tech-items {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.5rem;
}

.tech-item {
  background: var(--bg-secondary);
  border-radius: 16px;
  padding: 2rem;
  text-align: center;
  transition: all 0.3s ease;
  border: 2px solid transparent;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
  position: relative;
  overflow: hidden;
}

.tech-item::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, #ff4444, #4444ff);
  transform: scaleX(0);
  transition: transform 0.3s ease;
}

.tech-item:hover {
  transform: translateY(-5px);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.15);
  border-color: var(--primary-color);
}

.tech-item:hover::before {
  transform: scaleX(1);
}

.tech-icon {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

.tech-item h4 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.tech-item p {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

/* CTA 섹션 */
.cta-section {
  padding: 6rem 0;
  background: linear-gradient(135deg, #ff4444 0%, #4444ff 100%);
  color: white;
  text-align: center;
}

.cta-content h2 {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

.cta-content p {
  font-size: 1.2rem;
  margin-bottom: 2.5rem;
  opacity: 0.9;
}

.cta-buttons {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

.btn-large {
  padding: 1rem 2rem;
  font-size: 1.1rem;
}

/* 반응형 디자인 */
@media (max-width: 768px) {
  .about-hero .hero-content {
    grid-template-columns: 1fr;
    gap: 2rem;
    text-align: center;
  }

  .about-hero .hero-title {
    font-size: 2.5rem;
  }

  .hero-visual {
    height: 300px;
  }

  .floating-card {
    padding: 1rem;
  }

  .floating-card .card-icon {
    font-size: 1.5rem;
  }

  .floating-card span {
    font-size: 0.8rem;
  }

  .features-grid {
    grid-template-columns: 1fr;
  }

  .tech-container {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .tech-items {
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  }

  .structure-flow {
    flex-direction: column;
    gap: 0.5rem;
  }

  .structure-item {
    min-width: 120px;
    max-width: 200px;
    padding: 1rem;
  }

  .flow-arrow {
    transform: rotate(90deg);
    margin: 0.5rem 0;
  }

  .cta-content h2 {
    font-size: 2rem;
  }

  .cta-buttons {
    flex-direction: column;
    align-items: center;
  }
}

/* ===== Result Page Styles ===== */

/* Result Main Content */
.result-main-content {
  padding-top: 80px;
  min-height: 100vh;
  background: var(--background-color);
}

.result-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 2rem;
}

/* Result Hero Section */
.result-hero {
  padding: 3rem 0;
  text-align: center;
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 2rem;
}

.result-breadcrumb {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-bottom: 1rem;
}

.result-breadcrumb a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: color 0.2s;
}

.result-breadcrumb a:hover {
  color: var(--primary-color);
}

.breadcrumb-separator {
  color: var(--text-muted);
}

.result-page-title {
  font-size: 3rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 1rem;
  line-height: 1.2;
}

.result-page-description {
  font-size: 1.125rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

/* Result Controls */
.result-controls {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 2rem;
  padding: 1.5rem;
  background: var(--surface-color);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-sm);
  flex-wrap: wrap;
  gap: 1rem;
}

.result-filter-group {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.filter-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  border: 2px solid var(--border-color);
  background: var(--surface-color);
  border-radius: 50px;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-primary);
  cursor: pointer;
  transition: var(--transition);
}

.filter-pill:hover {
  border-color: var(--primary-color);
  background: rgba(37, 99, 235, 0.05);
}

.filter-pill.active {
  background: var(--primary-color);
  border-color: var(--primary-color);
  color: white;
}

.filter-count {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 20px;
  height: 20px;
  padding: 0 6px;
  background: rgba(0, 0, 0, 0.1);
  border-radius: 10px;
  font-size: 0.75rem;
  font-weight: 600;
}

.filter-pill.active .filter-count {
  background: rgba(255, 255, 255, 0.3);
}

.result-sort {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.sort-select {
  padding: 0.5rem 1rem;
  border: 2px solid var(--border-color);
  border-radius: var(--border-radius);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-primary);
  background: var(--surface-color);
  cursor: pointer;
  transition: var(--transition);
}

.sort-select:hover {
  border-color: var(--primary-color);
}

.sort-select:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

/* Result Grid */
.result-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: 2rem;
  margin-bottom: 4rem;
}

/* Result Card */
.result-card {
  background: var(--surface-color);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  padding: 2rem;
  transition: var(--transition);
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

.result-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s ease;
}

.result-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
  border-color: var(--primary-color);
}

.result-card:hover::before {
  transform: scaleX(1);
}

.result-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
}

.result-card-icon {
  font-size: 2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 50px;
  height: 50px;
  background: linear-gradient(
    135deg,
    rgba(37, 99, 235, 0.1),
    rgba(245, 158, 11, 0.1)
  );
  border-radius: 12px;
}

.result-card-type {
  padding: 0.25rem 0.75rem;
  background: var(--primary-color);
  color: white;
  border-radius: 50px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.result-card-title {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.75rem;
  line-height: 1.4;
}

.result-card-description {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 1.5rem;
}

.result-card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 1rem;
  border-top: 1px solid var(--border-color);
}

.result-card-date {
  font-size: 0.8125rem;
  color: var(--text-muted);
}

.result-card-action {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--primary-color);
  background: none;
  border: none;
  cursor: pointer;
  transition: transform 0.2s;
}

.result-card-action:hover {
  transform: translateX(4px);
}

/* Result Table */
.result-list-container {
  margin-bottom: 4rem;
}

.result-table {
  background: var(--surface-color);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.result-table-header {
  display: grid;
  grid-template-columns: 60px 100px 1fr 150px 120px;
  gap: 1rem;
  padding: 1rem 1.5rem;
  background: var(--background-color);
  border-bottom: 2px solid var(--border-color);
  font-weight: 600;
  font-size: 0.875rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.result-table-body {
  display: flex;
  flex-direction: column;
}

.result-table-row {
  display: grid;
  grid-template-columns: 60px 100px 1fr 150px 120px;
  gap: 1rem;
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--border-color);
  transition: var(--transition);
  cursor: pointer;
  align-items: center;
}

.result-table-row:last-child {
  border-bottom: none;
}

.result-table-row:hover {
  background: var(--background-color);
}

.table-col {
  display: flex;
  align-items: center;
}

.col-number {
  font-weight: 600;
  color: var(--text-muted);
  font-size: 0.875rem;
}

.col-thumbnail {
  justify-content: center;
}

.thumbnail-icon {
  width: 60px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  background: linear-gradient(
    135deg,
    rgba(37, 99, 235, 0.1),
    rgba(245, 158, 11, 0.1)
  );
  border-radius: 8px;
}

.col-title {
  font-weight: 500;
  color: var(--text-primary);
  font-size: 1rem;
}

.col-category {
  justify-content: center;
}

.category-badge {
  padding: 0.375rem 0.75rem;
  background: var(--primary-color);
  color: white;
  border-radius: 50px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
}

.col-date {
  font-size: 0.875rem;
  color: var(--text-secondary);
  justify-content: center;
}

/* Related Section */
.result-related-section {
  margin-top: 4rem;
  padding-top: 3rem;
  border-top: 2px solid var(--border-color);
}

.related-header {
  text-align: center;
  margin-bottom: 3rem;
}

.related-title {
  font-size: 2rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.related-description {
  font-size: 1rem;
  color: var(--text-secondary);
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.5rem;
}

/* Empty State */
.result-empty-state {
  grid-column: 1 / -1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 4rem 2rem;
  text-align: center;
}

.empty-icon {
  font-size: 4rem;
  margin-bottom: 1rem;
  opacity: 0.5;
}

.result-empty-state p {
  font-size: 1.125rem;
  color: var(--text-secondary);
}

/* Responsive Design for Result Page */
@media (max-width: 1024px) {
  .result-grid {
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
  }

  .result-table-header,
  .result-table-row {
    grid-template-columns: 50px 80px 1fr 120px 100px;
    gap: 0.75rem;
    font-size: 0.875rem;
  }
}

@media (max-width: 768px) {
  .result-container {
    padding: 1rem;
  }

  .result-page-title {
    font-size: 2rem;
  }

  .result-controls {
    flex-direction: column;
    align-items: stretch;
  }

  .result-filter-group {
    width: 100%;
    overflow-x: auto;
    padding-bottom: 0.5rem;
  }

  .result-sort {
    width: 100%;
  }

  .sort-select {
    width: 100%;
  }

  .result-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .result-table {
    overflow-x: auto;
  }

  .result-table-header {
    display: none;
  }

  .result-table-row {
    grid-template-columns: 1fr;
    gap: 0.75rem;
    padding: 1rem;
  }

  .table-col {
    justify-content: flex-start;
  }

  .col-number::before {
    content: "#";
    margin-right: 0.5rem;
    color: var(--text-muted);
  }

  .col-thumbnail {
    justify-content: flex-start;
  }

  .col-category {
    justify-content: flex-start;
  }

  .col-date {
    justify-content: flex-start;
  }

  .col-date::before {
    content: "날짜: ";
    margin-right: 0.5rem;
    color: var(--text-muted);
  }

  .related-grid {
    grid-template-columns: 1fr;
  }
}

/* ===== Alternative Layout Styles (Inspired by References) ===== */

/* Timeline View (Reference 3 Style) */
.result-timeline-view {
  display: none;
}

.result-timeline-view.active {
  display: block;
}

.timeline-section {
  margin-bottom: 4rem;
}

.timeline-period {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--text-muted);
  text-align: right;
  padding: 2rem 0;
  border-bottom: 2px solid var(--border-color);
  margin-bottom: 2rem;
}

.timeline-items {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.timeline-item {
  display: grid;
  grid-template-columns: 150px 120px 1fr;
  gap: 2rem;
  padding: 2rem 0;
  border-bottom: 1px solid var(--border-color);
  transition: var(--transition);
  cursor: pointer;
  align-items: start;
}

.timeline-item:hover {
  background: var(--background-color);
  padding-left: 1rem;
  padding-right: 1rem;
  margin-left: -1rem;
  margin-right: -1rem;
}

.timeline-thumbnail {
  width: 100%;
  aspect-ratio: 4/3;
  background: linear-gradient(
    135deg,
    rgba(37, 99, 235, 0.1),
    rgba(245, 158, 11, 0.1)
  );
  border-radius: var(--border-radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  overflow: hidden;
}

.timeline-thumbnail img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.timeline-date {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding-top: 0.5rem;
}

.timeline-day {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1;
}

.timeline-month {
  font-size: 1rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin-top: 0.25rem;
}

.timeline-content {
  padding-top: 0.5rem;
}

.timeline-title {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
  line-height: 1.3;
}

.timeline-badges {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1rem;
  flex-wrap: wrap;
}

.timeline-badge {
  padding: 0.25rem 0.75rem;
  border: 1px solid var(--border-color);
  border-radius: 50px;
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text-secondary);
  background: var(--surface-color);
}

.timeline-description {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 0.75rem;
}

.timeline-location {
  font-size: 0.875rem;
  color: var(--text-muted);
}

/* Magazine Grid View (Reference 2 Style) */
.result-magazine-grid {
  display: none;
}

.result-magazine-grid.active {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border-color);
  border: 1px solid var(--border-color);
}

.magazine-card {
  background: var(--surface-color);
  padding: 0;
  overflow: hidden;
  transition: var(--transition);
  cursor: pointer;
  display: flex;
  flex-direction: column;
}

.magazine-card:hover {
  transform: scale(1.02);
  z-index: 10;
  box-shadow: var(--shadow-xl);
}

.magazine-image {
  width: 100%;
  aspect-ratio: 1;
  background: linear-gradient(
    135deg,
    rgba(37, 99, 235, 0.1),
    rgba(245, 158, 11, 0.1)
  );
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 4rem;
  overflow: hidden;
}

.magazine-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.magazine-info {
  padding: 1.5rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.magazine-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.75rem;
  font-size: 0.8125rem;
  color: var(--text-muted);
}

.magazine-date {
  font-weight: 500;
}

.magazine-category {
  padding: 0.25rem 0.625rem;
  border: 1px solid var(--border-color);
  border-radius: 50px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.magazine-title {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
  line-height: 1.4;
}

.magazine-excerpt {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: auto;
}

.magazine-read-more {
  margin-top: 1rem;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--primary-color);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  transition: gap 0.2s;
}

.magazine-read-more:hover {
  gap: 0.5rem;
}

/* Compact List View (Reference 5 Style) */
.result-compact-list {
  display: none;
}

.result-compact-list.active {
  display: block;
}

.compact-table {
  background: var(--surface-color);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
}

.compact-header {
  display: grid;
  grid-template-columns: 80px 120px 1fr 200px 150px 120px;
  gap: 1rem;
  padding: 1rem 1.5rem;
  background: var(--background-color);
  border-bottom: 2px solid var(--border-color);
  font-weight: 600;
  font-size: 0.8125rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.compact-body {
  display: flex;
  flex-direction: column;
}

.compact-row {
  display: grid;
  grid-template-columns: 80px 120px 1fr 200px 150px 120px;
  gap: 1rem;
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--border-color);
  transition: var(--transition);
  cursor: pointer;
  align-items: center;
  font-size: 0.9375rem;
}

.compact-row:last-child {
  border-bottom: none;
}

.compact-row:hover {
  background: var(--background-color);
}

.compact-number {
  font-weight: 600;
  color: var(--text-muted);
}

.compact-thumbnails {
  display: flex;
  gap: 0.25rem;
}

.compact-thumb {
  width: 36px;
  height: 36px;
  background: linear-gradient(
    135deg,
    rgba(37, 99, 235, 0.1),
    rgba(245, 158, 11, 0.1)
  );
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  overflow: hidden;
}

.compact-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.compact-title {
  font-weight: 500;
  color: var(--text-primary);
}

.compact-type {
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.compact-location {
  font-size: 0.875rem;
  color: var(--text-muted);
}

.compact-status {
  padding: 0.375rem 0.75rem;
  border-radius: 50px;
  font-size: 0.75rem;
  font-weight: 600;
  text-align: center;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  background: var(--success-color);
  color: white;
}

/* View Switcher */
.view-switcher {
  display: flex;
  gap: 0.5rem;
  background: var(--surface-color);
  padding: 0.375rem;
  border-radius: var(--border-radius);
  border: 1px solid var(--border-color);
}

.view-btn {
  padding: 0.5rem 1rem;
  border: none;
  background: transparent;
  color: var(--text-secondary);
  font-size: 0.875rem;
  font-weight: 500;
  border-radius: calc(var(--border-radius) - 2px);
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  gap: 0.375rem;
}

.view-btn:hover {
  color: var(--text-primary);
  background: var(--background-color);
}

.view-btn.active {
  background: var(--primary-color);
  color: white;
}

.view-icon {
  font-size: 1rem;
}

/* Responsive adjustments for alternative layouts */
@media (max-width: 1024px) {
  .timeline-item {
    grid-template-columns: 120px 100px 1fr;
    gap: 1.5rem;
  }

  .result-magazine-grid.active {
    grid-template-columns: repeat(2, 1fr);
  }

  .compact-header,
  .compact-row {
    grid-template-columns: 60px 100px 1fr 150px 100px;
    gap: 0.75rem;
    font-size: 0.875rem;
  }

  .compact-location {
    display: none;
  }
}

@media (max-width: 768px) {
  .timeline-item {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .timeline-date {
    flex-direction: row;
    justify-content: flex-start;
    gap: 0.75rem;
    align-items: baseline;
    padding-top: 0;
  }

  .timeline-day {
    font-size: 2rem;
  }

  .result-magazine-grid.active {
    grid-template-columns: 1fr;
  }

  .compact-header {
    display: none;
  }

  .compact-row {
    grid-template-columns: 1fr;
    gap: 0.75rem;
    padding: 1.25rem 1rem;
  }

  .compact-number::before {
    content: "#";
    margin-right: 0.5rem;
  }

  .view-switcher {
    width: 100%;
    justify-content: stretch;
  }

  .view-btn {
    flex: 1;
    justify-content: center;
  }
}